74c7604adcf67 443e6174474 D3ddc E01f0dbd912 2025 Gmc. Owners of the 2025 chevrolet silverado and gmc sierra equipped with the 3.0l lz0 engine may encounter a unique issue where the vehicle may crank but fail to start. The gmc dealership installed a new trailer brake control module (part # 85073615) replaced earlier this week and they cleared the codes.

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